The RW1500-120APO is a wireless addressable interface and conventional open-area wall sounder that can be used as a stand-alone notification device. The REACH range is designed to solve challenging installation scenarios for structures with restricted or complex access and installation conditions such as listed buildings, out-buildings & temporary structures where wired installation or long site downtime is not possible. Key Features Compatible only with REACH Wireless 16 tone pairs Four Volume Settings Bi-directional wireless communication Dual channel redundancy Five year battery life
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